Crack tip behavior in near-surface fluid-driven fracture experiments

Andrew P. Bunger; Emmanuel Detournay; Robert G. Jeffrey

doi:10.1016/j.crme.2005.01.004

Crack tip behavior in near-surface fluid-driven fracture experiments

Andrew P. Bunger, Emmanuel Detournay, Robert G. Jeffrey

Civil, Environmental, and Geo- Engineering

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

This Note presents experimental results for the near-tip fracture opening of fluid-driven fractures. The effect of fluid viscosity, quantified by a dimensionless parameter, was varied between tests. The tip region closely followed the classical square-root behavior from linear elastic fracture mechanics when the viscosity parameter was small. Conversely, when the viscosity parameter was of order one and the lag between the fluid-filled region and the fracture front accounted for less than 30% of the fracture, the tip region behaved according to a known intermediate asymptotic solution which results from the solid/fluid coupling. To cite this article: A.P. Bunger et al., C. R. Mecanique 333 (2005). Crown

Original language	English (US)
Pages (from-to)	299-304
Number of pages	6
Journal	Comptes Rendus - Mecanique
Volume	333
Issue number	4
DOIs	https://doi.org/10.1016/j.crme.2005.01.004
State	Published - Apr 2005

Bibliographical note

Funding Information:
The authors wish to acknowledge funding from the Australian Coal Association Research Program (ACARP), CSIRO Petroleum, the Theodore Bennett Chair, and Schlumberger.

Keywords

Fracture mechanics
Hydraulic fracture
Rupture

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10.1016/j.crme.2005.01.004

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abstract = "This Note presents experimental results for the near-tip fracture opening of fluid-driven fractures. The effect of fluid viscosity, quantified by a dimensionless parameter, was varied between tests. The tip region closely followed the classical square-root behavior from linear elastic fracture mechanics when the viscosity parameter was small. Conversely, when the viscosity parameter was of order one and the lag between the fluid-filled region and the fracture front accounted for less than 30% of the fracture, the tip region behaved according to a known intermediate asymptotic solution which results from the solid/fluid coupling. To cite this article: A.P. Bunger et al., C. R. Mecanique 333 (2005). Crown",

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AU - Bunger, Andrew P.

AU - Detournay, Emmanuel

AU - Jeffrey, Robert G.

N1 - Funding Information: The authors wish to acknowledge funding from the Australian Coal Association Research Program (ACARP), CSIRO Petroleum, the Theodore Bennett Chair, and Schlumberger.

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N2 - This Note presents experimental results for the near-tip fracture opening of fluid-driven fractures. The effect of fluid viscosity, quantified by a dimensionless parameter, was varied between tests. The tip region closely followed the classical square-root behavior from linear elastic fracture mechanics when the viscosity parameter was small. Conversely, when the viscosity parameter was of order one and the lag between the fluid-filled region and the fracture front accounted for less than 30% of the fracture, the tip region behaved according to a known intermediate asymptotic solution which results from the solid/fluid coupling. To cite this article: A.P. Bunger et al., C. R. Mecanique 333 (2005). Crown

AB - This Note presents experimental results for the near-tip fracture opening of fluid-driven fractures. The effect of fluid viscosity, quantified by a dimensionless parameter, was varied between tests. The tip region closely followed the classical square-root behavior from linear elastic fracture mechanics when the viscosity parameter was small. Conversely, when the viscosity parameter was of order one and the lag between the fluid-filled region and the fracture front accounted for less than 30% of the fracture, the tip region behaved according to a known intermediate asymptotic solution which results from the solid/fluid coupling. To cite this article: A.P. Bunger et al., C. R. Mecanique 333 (2005). Crown

KW - Fracture mechanics

KW - Hydraulic fracture

KW - Rupture

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Crack tip behavior in near-surface fluid-driven fracture experiments

Abstract

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